Computing machine



Oct. 27, 1936. B. c. STICKNEY COMPUTING MACHINE 4 Sheets-Sheet 1 Filed Aug. 29, 1953 Oct. 27, 1936.- B, C EY 2,058,922

COMPUT ING MACH INE Filed Aug. 29, 1933 4 Sheets-Sheet 2 INVENTOR= @ww/w Oct. 27, 1936. B, c. STICKNEY COMPUTING MACHINE Filed Aug. 29, 19:55

4 Sheets-Sheet 5 Oct. 27, 1936. B. c. STICKNEY 2.058,922

COMPUTING MACHINE Filed Aug. 29, 1935 4 Sheets-Sheet 4 INVENTOFU Patented Oct. 27, 1936 PATENT OFFICE COMPUTING MACHINE Burnham C. Stickney, Hillside, N. J., assignor to Underwood Elliott Fisher Company, New York, N. Y., a corporation of Delaware Application August 29,

38 Claim.

accordingly by means of a general operator, and

the printing of the desired number is effected.

Machines of this type are illustrated in the United States patents to Oscar J. Sundstrand, Nos. 1,198,487 and 1,583,102 issued on September 19, 1916 and May 4, 1926 respectively. v

In machines of this type, it is usual to index the zero-type as well as the digit-types, so that it is necessary to strike the zero-key once for every zero that is to be printed.

It is an object of this invention to provide means for eliminating most of the labor which is usually connected with the setting of the zero- ,indexing pins.

customarily a machine of this style is provided with nine type-bars, each of which carries nine digit-types and a zero-type. The zero-types are usually normally in position for printing in the machine illustrated in the above-mentioned Sundstrand patent. The work of the usual zerokey, therefore, is to index the type-bars and to feed the indexing-carriage a step. In the Sundstrand machine, this carriage is shifted to the extent of one denomination at each key-stroke. In the machine illustrated in the patent aforesaid, if the amount of say, 5,000,000 is to be added, the operator first strikes the digit-key 5 once, and then depresses the 0 key six times.

According to one feature of the present invention, the time and number of operations required to index a plurality of successive zeros set of zero-keys. By striking the first auxiliary key, two zeros are automatically indexed accompanied by two' steps of .the indexing-carriage. By striking the second auxiliary key, three zeros are indexed, and three steps of the indexing carriage effected. By striking the third auxiliary key, three zeros are concomitantly indexed, with is materially reduced by providing an auxiliary 1933, Serial No. 687,273

nations, just the same as if the old single zerokey had been struck four times.

The zero-key train is operated by means of an oscillator, which is driven-by a power-driven escapement-wheel. The wheel vibrates an anchor- 5 escapement, and operates the zero-train repeatedly in one direction. The zero-train is returned to normal position by a restoring spring.

This escapemcnt-wheel is fixed upon a springdriven power shaft, and the restoring spring is rewound by the general operator of the adding machine.

The extent to which the power shaft escapes, is controlled by the fournovel auxiliary keys. Upon the shaft is fixed a universal feed-wheel, which is normally restrained by a pawl. The depression of any one of the auxiliary keys will release the pawlirom the feed-wheel, and at the same time, will control an individual dog, whereby the extent of rotation of the released power-shaft is limited. If, for example, the 0000 key is depressed, the power-shaft is permitted to escape four teeth, thereby causing four successive oscillations of the escapement anchor or lever,.and the setting of four zero index-pins, 25 one in each of four successive denominations. Upon the return of the depressed key, the individual dog is withdrawn from its control of the shaft, and the original pawl is reengaged to restrain the shaft against further revolution.

If it is desired to print six zeros, it is only necessary to operate the 000" key twice in succession. Seven zeros are provided by depressing first the 000 key and then the "0000 key. For indexing eight zeros, the 0000 key may be depressed twice. From the above it is apparent that considerable time may be saved by using the present invention.

With these and incidental objects in view, the invention consists in certain noveifeatures 01.40 construction and combinations of parts, the essential elements of which are set forth in appended claims, and a preferred form of embodimentsuch as hereinafter described with reference to the drawings which accompany and form part of the specification.

In said drawings:

Figure 1 is a sectional side elevation of a Sundstrand adding machine, with which the present improvements have been incorporated; the parts 60 being shown in normal positions.

Figure 2 is a sectional plan of the same, parts being omitted.

Figure 3 is a detail view in sectional elevation, of the power-driven zerolzing m, show- 55 ing one of the novel multiple-zero keys; all parts being in normal positions.

Figure 4 is an enlarged detail view, showing the position of the anchor-escapement when oscillated in one direction by the impulse-wheel l6, and having operated the zero-indexing train and carriage-feeding train 53 accordingly.

Figure 5 is a front elevation of the zero keys and power-shaft, and their connections, the parts being in normal position.

Figure 6 is a perspective, showing the 5 zerokey 81 in depressed position with its dog 59 engaged with ratchet-wheel 90, the shaft 15 having been rotated five teeth, whereby flve zero indexpins have been set up.

The Sundstrand machine comprises a platen 2 (Fig. 1) and type-bars I, each provided with ten types to print from zero" to 9." The uppermost type prints 0", the next lower 1, and so on. The type bars 3, in the machine-illustrated in Sundstrand, 1,583,102 above referred to, are normally in position to print ciphers. To lift each type bar 3 from the cipher-printing position to any other selected position there is used in said machine a rear lift-arm III which carries a roller that lies in a notch H in the type-bar, the arms ll being journaled on a fixed shaft. Rigid with each arm is another arm (not herein shown, but indicated at II in the Sundstrand patent referred to), which arm is yieldingly connected through springs to two side members. A main rock-shaft 35, (Fig. 1), rocked by a handle 21 is connected with said side members. When the operator pulls the handle forwardly, movement is yieldingly transmitted through the springs to such of the type bars 3 as are free to rise. When the operator releases the handle 21 on the completion of the forward stroke, means of suitable character returns the handle to normal position. The means for restoring those bars 3 which were raised in the forward stroke of the handle, includes restoring levers, which during the return stroke of the handle, are rocked in a direction to restore the type bars 3 to their initial (lower) positions, all as fully shown and explained in the Sundstrand Patent 1,583,102 heretofore referred to.

The means for limiting the extent to which the bars 3 may rise and thus to determine which numerals shall be brought to the printing position, comprises a group of settable indexing-stops 42 arranged in vertical columns, each indexingstop being horizontally slidable back and forth in a stationary guide-=frame 43. when moved rearwardly from normal position the stops are projected in the paths of movement of devices carried by the type bars 3 to differentially limit the upward movement of the type bars. These devices comprise angular arms 45 vertically hinged to the lower portions of the several type bars 3, and vertical arresting pins 46 having openings at their lower ends through which the forward ends of the arms 45 extend. The arresting pins 45 arranged in a transverse row, are guided for vertical movements in a step-by-step shifting carriage or slide 41 which is mounted on, and travels along, a stationary transverse guide rod or track 43. 'The track 43 is so positioned with respect to the indexing stop guide-frame 43, that the carriage 41 is shiftable to carry the vertical arresting pins 45 from their normal or initial position at the left-hand side of the group of stops 42 into vertical alignment with the successive columns of stops.

Those type bars 3 which are not needed in acwardly-settable type-bar arresting pins 45.

item progresses.

cumulating or printing a given item, are prevented from rising when the handle is pulled forward, by a detent-plate 48, (Fig. 2), guided to move in a horizontal plane, and more fully disclosed in the Sundstrand patents above-named.

The means for projecting the indexing stops 42 into the vertical path of movement of the type bar arresting pins 45 includes a plurality of digitkeys 49, (Figs. 1 and 2), conveniently numbered from 1" to "9", and a "0 key 49'. The stems 50 of the keys are mounted for vertical movement in guide-frames 5| located at the forward end of a base 40 of the machine. Each key is arranged to tilt a bell-crank 52 pivoted at its opposite ends in the side walls of the frame 51. The transversely extended head of each of the bellcrank levers associated with the keys 49, 48 bears against the shouldered front end of individual links 53, the rear ends of which are pivoted to the arms of corresponding horizontal levers 54 pivoted on a vertical axis 55. Springs connected to the arms 51 of the last-mentioned levers serve to restore the corresponding keys to normal positions after operation. A multiple-armed, universal lever 55, pivoted on the axis 55, has an arm 55 to which is fixed a depending vertical universa'l bar .59. A spring 6| connected to another arm of the universal lever, normally holds the universal rod 53 in contact with the arms 54 which are rigid with the respective key levers 54.

The indexing-mechanism also includes a shiftable bracket 52, which is pivoted at 63 to shift denominationally step by step, in clockwise direction and return. The bracket 52, at its rear end, carries a post 54 in which are slidably supported the rear ends of push-rods 65. The forward end of each indexing-push rod 65 is pivoted to an arm of its associated key lever 54. The key levers 54 correspond to the keys 0 to 9, inclusive. There is no need of providing a push-rod 55 for the key 9. An additional escapement-trippi'ng push-rod 55' is pivoted to the universal lever 58. The push-rods 55 and 55' are arranged in a vertical column and all except the uppermost or escapement-tripping push-rod 55", are adapted to push the indexing-stops" rearwardly out of normal position and into the path of the up The escapement-tripping push-rod 55' is used only for escapement purposes.

The carriage 41 is caused to shift in unison with the bracket 62 by means of a pin 56 fixed to the bracket and lying within a fork 51 on the carriage.

As the operator sets up an item on the keyboard by successively depressing the appropriate keys, the carriage 41 and the bracket 52 are moved from one vertical row of indexingstops 42 to the next row as each number-key is depressed and released. The series of push-rods 65 normally stands in front of the vertical column of index-stops 42 which is farthest to the left, and is stepped to the successive vertical columns of index-stops as the setting up of the The series of arrestingpins 45 is moved from left to right, step by step (one step for each denomination in the item being set up) thereby bringing the necessary number of pins 45 into vertical alignment with the index-stops 41 that have been set by the push-rods 55.

The carriage 41 and the bracket 62 are moved to the right by a spring 58, controlled by an escapement. The escapement includes the uppermost push-rod 55, and a tooth 54 formed on the upper end of the vertical post 54 projecting upwardly from the rear end of the bracket, in combination with a curved ratchet bar or rack 69 pivoted to the framework at 18. The ratchetbar is yieldingly held against the topmost pushrod 65* or the tooth 64 by a spring 1|.

The universal bar 58, depends from the uppermost or universal lever 58, and hence, the uppermost or escapement-controlling push-rod 85 will be moved whenever any one of the zero or digit keys 49 49 is depressed. I

When the escapement-controlling push-rod v65", upon depression of a key, pushes a tooth oi the ratchet-bar 69 clear of the tooth 64 of the post 64, the spring 68 pulls the carriage 41 and the bracket 62, together with the row of push-rods, to the right, until the rearwardly projected end of the push-rod 65 contacts with 'and stops against that tooth of the ratchet-bar just revanced positions after setting up an item, until the.

handle, near the end of its return stroke, operates means (not shown) to restore the carriage 41 and the bracket 62 to the left into their initial positions.

With the carriage 41 and bracket 62 in the r normal positions, depression of any digit-key 49 (or the zero-key 49 swings a bell-crank 52, which, by means of its link 53, rocks a corresponding rear lever 54 to thrust rearwardly an ind vidual push-rod 65, for projecting a corresponding index-pin 42 in the left-hand tier at Figure 2. The set of push-rods 65 then shifts to the next tier of index-pins 42, as above explained. 7

As mentioned above, the stepping movement of the pivoted bracket 62 is imparted to the carriage 41, which takes one step for every keystroke. This determines the denominations of the integers in the amount printed upon the worksheet on the platen. The first step of the car-' riage 41 brings the right-hand type-bar 3 under the control of the set index-pin 42. The second complete step of the carriage brings the first two right-hand type-bars 3 under the control of the first two left-hand set index-stops, andso on.

In Figures 1 and 3, it is also seen that the usual zero-key 49 controls the printing of zeros, having an indexing and letter-space feeding train, including abell-crank 52, a link 58, a key-lever 54, a push-rod 85. and an indexing stop 42. There is one zero-indexing stop at the bottom of every tier or column of indexing stops, making nine indexing stops for zeros, or one in each denom-' ination. These zero stops, since they are at the bottom, intercept the arresting pins 48 and their respective type bars 3 and thereby prevent the type-bars from rising, so that the usual hammers I80, Figure 1, strike the uppermost or zero types on the type-bars and drive them against the work-sheet on the platen 2.

As so far described, the operation is old and well known, and is set forth in detail in various Sundstrand patents, including those above mentioned. In said patents there is a normally restrained hammer l" for each denomination.

These hammers are not released for action unless they come into the indexing-range, the ones so affected being released upon operation of the general operator 21. Hence no zero will be printed at the left hand of the amount which has been set up in the machine. This result is effected by the provision of the detent plate 48".

The type-bars 3 have racks (Fig. 1) which operate adding-wheels I25.

The carriage 41 is usually provided with an index pointer or finger, 12, (Fig. 2) to co-operate with a scale 13 upon the machine-frame, to show how many denominations have been indexed.

From the foregoing, it will be seen that, for every operation of the zero-key 49, the indexingmechanism is set for causing a cipher to be printed in the corresponding denomination of the amount.

In the illustrated form of this invention. the particular indexing-train which is operable by the zero-key 49 is also mechanically operable repeatedly and successively by mechanical means independently of said zero-key 49, and independently of its stem 58; said key 49 preferably remaining stationary during the novel mechanical operation now to be described.

To this end, a zeroizing spring 14 (Fig. 6) powers a shaft 15, upon which is fixed an escapementwheel 16 to give impulses to opposite pallets 11, 18, of an anchor-escapement, which is pivotally mounted at 19; the rotation of the wheel 16 causing the escapement to oscillate. Said anchorescapement strikes an abutment upon the front end of the lowermost link 53 (wh ch forms part of the aforesaid zero-indexing train).

Hence said zero-link 53, together with its train.

is mechanically operated repeatedly, so long as the shaft 15 rotates; and, at every operation of said train, a lowermost index-pin 42 is set. and the crane 62 and carriage 41 are also stepped along. In this way, the machine is indexed for zero in as many denominations as there are complete oscillations of the pallet-lever 11. 18.

Normally, the power-shaft 15 is restrained by a locking dog 8|, which is pressed by a spring 83 into engagement with a ratchet-wheel 82, fixed upon said power-shaft 15. This dog 8| may be released by any one of four auxiliary zero-keys,

numbered 84, 85. 86, and 81, which are placed at the frontof the keyboard, two at each side of the zero-key 49 as at Figure 6. Said multiplezero-indexing keys 84 to 81 are mounted upon stems 88. .For the purposes of this disclosure the stems 88 of the keys 85 and 81 may carry forwardly extending detents 89, and it is to be understood that the stems of the special keys 84 and 86 are similarly equipped. When one of these keys is depressed. its detent 89 engages the teeth of a ratchet-wheel 90, individual thereto, and loosely mounted on the power-shaft 15, as hereinafter explained, in such a manner as to preventthe ratchet-wheel from being rotated by its tensioned spring 9|, one end of which is fastened to the power-shaft 15, around which it is coiled in a direction reversely to the direction in which the shaft is turned during the operation of setting a plurality of zeros successively in the mawheels 98 carries a longitudinally, projecting arcuate lug 99, the lugs being of progressively less arcuate extent as the number of complete oscillations required of the anchor escapement.

In the form illustrated, the individual coil springs 9! of the several ratchet wheels 90, normally hold the rear faces of the lugs 96 against associated stop teeth 55, one for each ratchet wheel, as shown at the left, in Fig. 6. The stop teeth arranged at intervals along the power shaft I5, are fast with and project radially therefrom.

The differential ratchet wheels 80, and the impulse wheels 15 preferably have the same number of teeth.

The springs ll are respectively inferior to the motor spring 14.

When any auxiliary key (as shown at l'l, Figure 6) is depressed, a key-pin 92 depresses an arm 58 upon a universal shaft 9|, which carries the locking dog ll, to withdraw the locking dog from escapement-wheel l2, and permit the power-shaft I! to drive the impulse-wheel It, to oscillate the anchor-escapement 11, II, and repeatediy operate the zero-indexing train.

During this operation, the key 81 is held down, with its detent OI engaged with its own ratchetwheel 50 to hold the latter stationary. The powershaft 15, therefore, continues to revolve until the tooth l5 thereon associated with the lug 05 on the hub II of the ratchet-wheel ll appropriate to the key .1, is arrested by contact with the front face of its lug 5i asshown at the right in Figure 6. The notch 98 formed in the hub I1 is sufficiently extensive to permit rotation of the power-shaft i5 relatively to the ratchet SI of special key I], to the extent of five notches of the impulse-wheel I5. Thus, when an auxiliary key ll to II is depressed, the power-shaft I5 is released to the action of its power-spring I4 and drives the impulse-wheel l5, oscillating the anchor 11, I8, and repeatedly thrusting rearwardly the lowermost indexing-train 53, ll, 05, as 'viewed in Fig. i. This will interpose zero stops 4! of corresponding denominations into the paths of the arresting pins 4| to prevent the selected type-bars 3 from rising and presenting any digit-type in front of the platen, wherefore these type-bars will be caused to print an array of zeros. The return swing of the anchor 11, I8, is aided by the leverrestoring spring 50 (Fig. 2).

It will be seen that the lengths or extents .of the notches ll vary in the different hubs 51, in correspondence with the number of ciphers which are indicated upon the corresponding key although only two hubs I! are disclosed in the drawings, it will be understood that one such hub is associated with each of keys ll, 85, II, and II.

It is contemplated that the hub 91, with which the key I is intended to coact, will be formed with a notch IQ of such radial length as will permit of two steps of movement of shaft 15.

A hub 01 associated with the key is formed with a notch OI permitting three steps of movement of shaft 15.

Although no hub is shown in connection with the disclosure of key 8!, it will be understood that such a hub identical in all respects with those shown in Figure 1, excepting that a notch permitting of four steps of movement of shaft 15, will be employed.

Key 51 coacts with a hub 91 formed with a notch of such radial length as will permit of five steps of movement of the shaft 15. Thus it will be seen that depression ofany auxiliary key releases the power-shaft I5 to operate the zeroindexing train in one direction, the train, on its return under the influence of springs 56 and SI,

operating to rock the escapement anchor back to its normal position assisted by appropriate camming action of the teeth of wheel 15. If more than five zeros are to be printed, in one line, the extra zeros may be provided by subsequently depressing key 49 or the desired auxiliary or special key.

At the completion of thezero-indexing, the spring I4 is pressing the appropriate stop tooth 95 against the forward face of its lug II, which is restrained by the dog 8! of the associated key depressed. At this time, the pallet or anchor 11, II is in normal position, and the zero-indexing train 53, 54 and O5 is also in normal position.

When the selected auxiliary key is released from pressure, the spring 5!, (Figs. 1, 5, and 6), restores it to normal position, thereby withdrawing the tripping pin II from contact with the arm 93 on the tripping shaft 54. (Io-incidentally with the release of the arm II by the tripping pin ll, the spring N, (Fig. 6) snaps the locking dog ll into engagement with the locking latch I! to prevent farther clockwise rotation of the powershaft I5, and the consequent setting of additional undesired zero steps 42.

; Meanwhile,'the key-restoring spring I! elevates the key stem 8. to withdraw the detent I! from engagement with the diii'erential ratchet II.

The power-shaft 15, in its clockwise rotation, has tensioned the coil spring 3| appertaining to the particular ratchet wheel Bl engaged by the detent I! of the depressed multiple zero key, so that upon release of the ratchet wheel BI by its detent 8!, the tensioned coil spring 9| rotates in clockwise direction the ratchet with its hub 51 and lug 55, until the rearwardly facing wall of the lug contacts and is arrested by the front face of the radially extending stop tooth 95 of the power-shaft.

Obviously, the angular position of the powershaft 15 and stop tooth 95, at this point in the operation of the machine, differs from the angular position occupied at the start of the operation, due to the fact that the power-shaft 15 has advanced in clockwise direction. a distance equal to the distance between the front and rear faces of the lug 56.

Also the ratchet wheels SI with their hubs 51 and lugs 95 corresponding with the undepressed multiple zero keys, turn idly with the powershaft 15 on its advance by the motor spring 14, the coil springs 9| serving as a connecting means between the idle ratchet wheels and the powershaft.

During the operation of the keys for setting up the rest of the same amount, either the zero-key 49' or any of the auxiliary keys II to 51 may be operated to introduce one or more zeros in the amount wherever necessary.

Thus, the introduction of zeros can be accom-. plished without the necessity of counting the number of times the zero key is depressed, and without the necessity of operating the key 49' repeatedly. Also labor is saved, time is gained and liability of errors is avoided.

Retensioning of the motor spring 14 and return of the power-shaft I5 and parts carried.

thereby to their normal positions after each printing operation, are effected by the handle or general operator 21, (Figs. 1, 2, and 5), which is connected by a link ill, (see Fig. 6) to a rewinding crank ill. The crank has a wrist I02 in a slot I03 in the forward end of the link, and at its opposite end, the crank is formed into a toothed segment I" in constant mesh with a 75 pinion I fast on the right hand end of the powershaft I5. I

During the advance of the power-shaft I5, under the influence of the spring or motor I4, the pinion I05 rocks the restoring segment I04 to cause the wrist I02 to travel towards the rear end of the slot I03 in the restoring link I00. At the concluding portion of the initial or forward stroke of the general operator 21, the crank IOI is rocked, causing the segment I04 to reversely rotate the power-shaft I5 by means ofthe pinion I05, to rewind the spring I4. The locking dog 8| rides idly over theteeth of ratchet-wheel 82 during this operation. I

During such reverse rotation of the powershaft I5, it is not desired that the impulse or escapement wheel I6 rotate, and therefore, such impulse wheel is connected by a pawl or yielding clutch I06 to the power-shaft, said clutch having a restoring spring I01 and ratchet-teeth I08 to engage similar teeth upon the hub I09 of the poWer-escapement wheel I6 which is restrained from backward movement by a suitably pivoted back-check pawl IIO, (Figs. 3 and 4), held effective in one direction by a spring I I I.

A spring II2 operates through the bell-crank 52 to hold up the usual zero-key 49' during the operation of the auxiliary zero-keys. The auxili-y ary key-stems 88 are held in the upper guide plate SI and also in lower eyes H3, (Figs. 1 and 2.)

The described novel power and trip shafts I5 I and 94 are journaled in side brackets I I4, secured upon the main framework, and the anchor-escapement is supported upon a bracket II5, Figure 3, all enclosed by a cover-plate H6, (Fig. 1), at the front of the machine.

- In a machine having the capacity of that herein illustrated, the power-shaft I5 need not becapable of rotating beyond the distance required for setting up nine zero index-pin stops, and the advance movement of the segment l04, and consequently of the power-shaft, may be limited by a stop III, Figures 1 and 6.

It is also observed that for a stop-setting stroke of the train there is required more power than for the return stroke thereof, and the teeth of the pallets and of the impulse-wheel may be shaped accordingly, so that the power-shaft may move through a greater angle when advancing.

the stop-setting train than when returning it. The impulse-wheel I6, through the anchor 11, I8, may exert a good leverage upon the train, to drive it through its initial stroke, and to tension its returning spring 6|, while it has much less leverage upon the train for effectingthe return stroke thereof; the movement, however, being aided by said returning spring 6|, whereby the power of the drive-spring I4 is economized, permitting the use of a spring of moderate strength, whose retensioning will not require undue labor to be applied to the general-operator handle 21.

Variations may be resorted to within the scope of the invention, and. portions of the improve-,- ments may be used without others.

Having thus described my invention, I claim: 1. In an adding machine having type and a step-by-step shifting denominational member therefor, the combination of a. spring-driven shaft, an impulse-wheel, an anchor-escapement caused by said wheel to oscillate under the power of said spring, a zero-type setting train repeatedly operable by said escapement, said train including a denominationally shifting member,

whereby the machine is-indexed for the printing of as many zeros as there are oscillations of the escapement-member, a ratchet on the shaft; and a dog engageable with the ratchet to restrain the shaft, a plurality of keys, each having means to release said dog, ratchet wheels upon said shaft individual to said keys, detents operable by the keys to restrain the individual ratchet: wheels, and means yieldably connecting said ratchet-wheels to said shaft, to permit respectively different extents of rotation of the shaft, the spring-driven shaft continuing to rotate until a tooth thereon is arrested by a stop provided upon the selected ratchet-wheel.

2. In an adding machine having type and a step-by-step shifting denominational member therefor, the combination of a spring-driven shaft, an impulse-wheelflan anchor-escapement caused by saidwheel to oscillate under the power of said spring, a zero-typesetting train repeatedly operable by said escapement, said train including a denominationally shifting member, whereby the machine is indexed for the printing of as many zeros as there are oscillations of the escapement-member, a ratch on the shaft; and a dog engageable with the ratchet to restrain the shaft; a plurality of keys, each having means to release said dog, ratchet-wheels upon said shaft individual to said keys, detents operable by the keys to restrain the individual ratchet-wheels, and means yieldably connecting said ratchetwheels to said shaft, to permit respectively different extents of rotation of the shaft, said individual ratchet-wheels having hubs provided with notches or openings of graduated lengths, and said shaft having teeth playing in said notches for variably limiting the rotation of the springdriven shaft, the length or capacity of the notches in the hubs varying in correspondence with the number of zeros which are indicated upon the corresponding keys.

3. The combination with zero indexing devices and an indexing train to set the zero indexing devices; of a multiple zero indexing key; and mechanism, rendered effective by a single operation thereof, to actuate the indexing train repeatedly and set a succession of the zero indexing devices.

4. The combination with zero indexing devices; and an indexing train therefor; of a plurality of multiple zero indexing keys; power-operated means, rendered effective by a single operation of any one of said keys, to actuate the indexing train repeatedly to set a succession of the zero indexing devices; and differential mechanisms controlled by each of said keys to arrest the power-operated means according to the number of zero indexing devices to be set by an operation of that key.

5. The combination with zero indexing devices;

a zero indexing key; and an indexing train controlled by said key for setting the zero indexing devices seriatim; of a plurality of auxiliary multiple-zero keys of different capacities; and means controlled by any of the auxiliary keys to effect,

at each single operation thereof, repeated operations of the indexing train in correspondence with the capacity of the key operated.

6. The combination with digit and zero indexing devices; digit and zero indexing trains to index their respective devices; and an escapement to effect relative step by step movement between, the indexing devices, and their indexing trains; of a multiple zero indexing key; and means, controlled by a single operation thereof,

to automatically actuate one 0! the indexing trains repeatedly to set the appropriate indexing devices in successive denominations.

'I. The combination of zero indexing devices; an indexing train theretor; an escapement to eflect relative step by step movement between the indexing devices and the indexing train; a source of power connected to operate said escapement and indexing train repeatedly and thereby set a plurality o! sero indexing devices in succession; a control element, and means whereby a single operation 0! the element will determine the number of repeat operations to be made.

8. The combination with digit and zero indexing devices; separate indexing trains appropriate thereto; and an escapement to effect relative step by step movement between the indexing devices, and their respective indexing trains; 01 a source or power actuated to operate one oi said indexing trains repeatedly, to set a succession of indexing devices; a key; means controlled by the key to render eiiective the source of power; and means controlled by the key to predetermine the number of impulses imparted by the source or power to the indexing train operated thereby.

9. The combination with digit and zero indexing devices; separate digit and zero indexing trains therefor; and an escapement to effect relative movement between the indexing devices and their indexing trains; of a spring-actuated means connected to operate one of the indexing trains repeatedly, to set a succession of indexing devices; a key to trip the spring-actuated means for operation; means controlled by the key to predetermine the number 01 operations of the indexing train by the spring-actuated means; and means to retension the spring incident to the operation or the machine.

10. The combination with digit and zero indexing devices; separate trains for setting the indexing devices oi diiierent values; and an escapement to effect relative movement between the indexing devices, and their indexing trains; of a motor-driven means'to actuate one oi the indexing trains repeatedly; means to restrain the motor-driven means; a special key; and means controlled by the key to render'the motor-driven means eflective, and to predetermine the extent of its repeated action upon the associated indexing train.

11. The combination with digit and zero indexing devices; separate indexing trains for setting the indexing devices of diiierent values; and an escapement to eiiect relative movement between the indexing devices, and their indexing trains; of a spring-driven means to actuate one o! the indexing trains repeatedly; means to restrain the spring-driven means; a special key; mos controlled by the key to release the restraining means, and to predetermine the number of successive impulses delivered by the spring-actuated means to the associated train; a general operator; and means connected therewith to restore the spring-driven means to normal, and to retension the spring.

is. The combinatirm with a q re isit and more indexing devices; manually operable setting trains appropriate thereto; and an escapement to eil'ect relative movement between the series ing trains; of a motor-operated impulse wheel; an anchor ucapement actuated by the impulse wheel and elective to operate one 0! the setting trains repeatedly; means normally restraining of indexing devices and their respective indexsaid impulse wheel; and manually-controlled. means to release the restraining means, and to control the number of train operations effected thereby.

13. The combination with digit and zero indexing devices; setting trains appropriate thereto; and an escapement to efl'ect relative movement between the indexing devices and their respective setting trains; oi a'motor; a dog normally restraining the motor; manually operable means to release the dog to tree the motor 101' operation; and an impulse wheel operated by the motor, and so located with relation to one of the setting trains as to effect repeated operation thereof.

14. The combination with digit and zero indexing devices; setting trains appropriate thereto; and an escapement to effect relative movement between the indexing devices and their setting trains; of a motor; a dog to normally restrain the motor from operation; manually operable means to release the dog; an impulse wheel operated by the motor, and so located relatively to one 01 the setting trains as to eii'ect repeated operation thereof when driven by the motor in one direction; and means rendered ei'i'ective by the manually-operable means to arrest the impulse wheel after a predetermined number of strokes have been imparted to the setting train.

15. The combination with digit and zero indexing devices; setting trains appropriate thereto; and an escapement to effect relative movement between the indexing devices, and their setting trains; 0! a motor; a dog to normally restrain the motor; manually-operable means to release the dog; an impulse wheel operated by the motor to elect repeated operation of a setting train; means rendered effective by the manually-operable means to arrest the impulse wheel after a predetermined plurality of operations of the setting train; and means to return the manually-operable means, restore the restraining dog to effective position and withdraw the arresting means irom control of the impulse wheel.

16. The combination with zero indexing devices; a setting train therefor; and an escapement to elect relative movement between the indexing devices and the setting train; 0! a power-shaft; a restraining dog therefor; a plurality of multiple zero keys of diiierent capacities; means operable by any of the multiple zero keys to release the dog and free the power-shalt for operation; an impulse wheel operated by the power-shaft, to repeatedly actuate the setting train, upon a single deprenion oi the selected multiple zero key; means rendered eflective by the respective multiple zero keys to arrest the power-shaft differentially; and means to restore the depressed key to normal, disable the diiierential power-shaft arresting means and free the shalt-restraining dog for eflective operation.

17. The combination with digit and zero indexing devices; setting trains appropriate thereto; a key associated with each train; an escapement to eiiect relative movement between the indexing devices and their'setting'trains; ot a motor-actuated means to operate one at the setting trains independently or its associated key; an auxiliary key; and means rendered elective thereby to control the repeated operation of the setting train by the motor-actuated means.

l8. The-combination with disit -and-sero indexing devices; setting trains appropriate thereto; and an escapement to eilect relative movement between the indexing devices, and their 15 actuate a setting train; said train having a restoring spring to aid in returning the-last-named means to normal; and means whereby a single operation of the manually-operable means will determine the number of repeat operations to be 20 made.

20. The combination with digit and zero indexing devices; setting trains therefor; and an escapement to 'eifect relative movement between the indexing devices and their setting trains; of a' motor-driven shaft; means to normally restrain the motor-driven shaft; means to release the restraining means; an impulse wheel operated by the shaft to repeatedly actuate a setting train; means controlledby the manually-operable means to arrest the impulse wheel after a predetermined number of strokes of the setting train; a general operator; a link operated thereby; and a shaft-restoring means operable by the link to reversely rotate the shaft to its starting position.

21. The combination with digit and zero indexing devices; setting trains therefor; and an escapement to effect relative movement between the indexing devices and their setting trains; of 40 a motor-driven shaft; a restraining means therefor; manually-operable means to release the restraining means; an impulse wheel operated by the shaft to repeatedly actuate a setting train; means controlled by the manually-operable 45 means to'arrest the impulse wheel after a predetermined number of strokes of the setting'train; a general operator; a link driven thereby; a shaft-restoring means operated by the link, said link having a slot thereon; and a wrist associated 50 with the shaft-restoring means and adapted to traverse the slot.

22. The combination with digit and zero indexing devices; setting trains therefor; and an escapement to efiect relativemovement between manually operable a motor; a shaft driven by the motor; a dog to normally render the motor ineffective; manually-operable means to release the dog; an impulse gyheel actuated by the shaft to repeatedly operate 60 a setting train; means controlled by the manually-operable means to arrest the impulse wheel after a predetermined stroke of the setting train; and a back-check pawl adapted to lock the im- -pulse wheel against rotation in one direction to permit restoration of the shaft while the impulse wheel remains stationary.

23. The combination with a carriage; and an escapement mechanism therefor; of a normallyrestrained driver; a manipulative means to release the driver for operation; means to diflerentially arrest the driver; and escapement pawl oscillated by the driver; and tripping means actuated by the espapement pawl under control of 75 the arresting means to effect repeated oscillations of the carriage escapement mechanism at a single operation of the manipulated means;

24. The combination witha normally idle series of stops, including a series of zero stops; indexing trains to set selected stops; and an es- 5 capement to control relative movement between the indexing trains and the stops, the indexing trains adapted to trip the escapement; of a key; and mechanism controlled thereby, upon a single operation of the key, to repeatedly operate one of the indexing trains to automatically set a succession of similar stops.

25. The combination. with normally idle stops, including zero stops; indexing trains to set selected stops; andan escapement to control relative movement between the indexing trains and the stops, the indexing trains adapted to trip the escapement; of a plurality of special keys; power means common to the special keys, and tripped by a single operation of any of such keys, to repeatedly actuate one of the indexing trains; and arresting means individual to and controlled by the respective special keys to determine the number of times the indexing train shall be operated.

' 26. The combination with digit and zero indexing devices; setting trains appropriate thereto; and an escapement to effect relative movement between the indexing devices; and their setting trains; of a power-shaft; an impulse wheel releasably connected thereto for rotation in one direction therewith, and operable upon one of the setting trains to repeatedly actuate the train to cause it to successively set up a plurality of indexing devices; normally effective means to restrain the power-shaft and impulse wheel from rotation in one direction; and manually operable means to trip the restraining means.

27. The combination with a plurality of dif-' ferential elements; a plurality of denominational columns of stops to arrest the elements differen- 40 tially; a denomination-selecting member; stopsetting trains positioned denominationally by the member; and keys to actuate the trains; of a set of auxiliary keys; a power device controlled by the keys to repeatedly actuate one of the stopsetting trains a different number of times depending on the particular auxiliary key depressed.

28. The combinationwith a plurality of differential elements; a plurality of denominational columns of stops to arrest the elements differentially; a denomination-selecting member; stopsetting trains positioned denominationally by the member; and keys to actuate the trains; of a set of auxiliary keys; 9. power device controlled by the keys to repeatedly actuate one of the stop- ...oetting trains a different number of times depending on the particular auxiliary key dergressed and independently of the first-mentioned eys. 6

29. The combination with a series of differen- 0 tial elements; a series of columns of normally idle value and spacing stops for each element, to variously arrest the elements; an indexing train common to all stops of like value; and an indexing train common to' the spacing stops; a denomination-selecting member 'to position the indexing trains in co-relation with the successive columns of'stops; and keys to actuate the indexing trains; of means to automatically and repeatedly actuate one of the indexing trains; and auxiliary keys to selectively determine when such means shall operate and the number of times the indexing train shall be operated.

30. In a machine of the class described, the

combination with a plurality of sets of. indexing devices;' key-operated indexing trains individual to the sets of indexing devices; and an escapement to effect relative movement between the sets of indexing devices and the indexing trains; of means to impart successive movement to one of the trains, including a normally ineffective, power-driven element; a member repeatedly reciprocated by the power-driven element to actuate one of the indexing trains; arresting means for the power-driven element; and a manipulative device to render the power-driven element and the arresting means effective, to determine the number of actuations imparted by the reciprocatory member to the indexing train.

31. In a machine of the class described, the combination with a plurality of sets of indexing devices; key-operated indexing trains individual to the sets of indexing devices; and an escapement to effect relative movement between the sets of indexing devices and the indexing trains; of means to impart successive movement to one of the trains, including a normally ineffective power-driven shaft; a reciprocatory member operable upon oneof the indexing trains; means actuated by the shaft to reciprocate the member a plurality of times; arresting means for the powerdriven shaft; and a manipulative device, which, at a single setting, renders the power-driven shaft at once effective, and controls the arresting means to become effective upon the completion of -a predetermined number of reciprocations of the member.

32. In a machine of the class described, the combination with a plurality of sets of indexing devices; key-operated indexing trains individual to the sets of indexing devices; and an escapement to eiIect relative movement between the sets of indexing devices and the indexing trains;

of means to impart successive movement to one of the trains, including a normally ineffective power-driven shaft; a reciprocating member operable upon one of the indexing trains; an actuating element journaled on the shaft, a clutch to connect the element to the shaft for rotation therewith in one direction; a reciprocatory member for repeated operation by the actuating element, and eflective to repeatedly operate one of the indexing trains; a manipulative device to render the power-driven shaft effective; arresting means for the actuating element conditioned by the manipulative device to becomeetfective to arrest the actuating element upon the completion of a'predeterrnined number of reciprocations of the indexing train; resetting means for the power-driven shaft; and means to lock the actuating element against movement with the shaft during the shaft-resetting operation.

33. In a machine of the class described, the combination with a plurality of sets of indexing devices; key-operated indexing trains individual to the sets of indexing devices; and an escapement to eii'ect relative movement between the sets of indexing devices and the indexing trains; of means to impart successive movements to one of the trains, including a normally ineffective power-drive; an actuator operated by the power-drive in one direction; a reciprocatory member operable upon one of the indexing trains under the influence of the actuator; spaced coacting arresting elements for the actuator, one of which elements travels with the power-drive; and manually-operable means to co-act with the other of said co-acting arresting elements to condition the element for arresting the co-acting element traveling with the power-drive.

34. In a machine of the class described, the combination with a plurality of sets of indexing devices; key-operated indexing trains individual to the sets of indexing devices; and an escapement to effect relative movement between the sets of indexing devices and the indexing trains; of means to impart successive movements to one of the trains, including a normally ineffective power-drive; means operable by the power-drive to repeatedly actuate one of the indexing trains; a plurality of manipulative devices to render the power-drive eil'ectiveLa set of spaced co-acting stop members associated with each manipulative device, the spacing varying between the individual ones of each set of stop members, respectively; one of each set of stop members connected to travel with the power-drive, the co-acting stop member and the power-drive being adapted for relative movement; and means operable by the manipulative devices to condition the last-named stop members to arrest their co-acting stop members and the power-drive.

35. In a machine of the class described, the combination with a plurality of sets of indexing devices; key-operated indexing trains individual to the sets of indexing devices; and an escapement to eflect relative movement between the sets of indexing devices and the indexing trains; of means to impart successive movements to one of the trains, including a normally ineil'ective power-drive; means operable by the power-drive to repeatedly actuate one of the indexing trains; a manipulative device to render the power-drive effective; spaced co-acting stop members, one of which is movable concomitantly with the powerdrive, there being relative movement between the other co-acting stop member and the powerdrive; and means operable by the manipulative device to condition the last-named stop member to arrest its co-acting stop member and the power-drive.

36. In a machine of the class described, the combination with a plurality of sets of indexing devices; key-operated indexing trains individual to the sets of indexing devices; and an escapement, to efiect relative movement between the sets of indexing devices and the indexing trains; of means to impart successive movements to one ofthe trains, including a normally ineffective power-drive; means operable by the power-drive to repeatedly actuate one of the indexing trains; a manipulative device to render the power-drive effective; spaced co-acting stop members, one of which is movable concomitantly with the power-drive, there being relative movement between the other co-acting stop member and the power-drive; means operable by the manipulative devices to condition the last-mentioned stop member to arrest itsco-acting stop member and the power-drive at the completion of a predetermined number of reciprocations of v the indexing train; and flexible means to restore to its normal position that stop member relatively to which the power-drive is movable.

3-7. In a machine of the class described, the

combination with a plurality of setsof indexfective power-driven element; means operable by the power-driven element to repeatedly actuate an indexing train; arresting means for the power-drive, including a stop member operable concomitantly with the power drive, and a co- -acting stop member spaced from the first-named and to condition the last-named stop member to arrest the first-named stop member at the completion of a predetermined number of operations of the indexing train; and a flexible link ten-tsioned' by'the power-drive to return the secondnamed stop member to normal position relatively to its co-operating stop member.

38. The combination with digit and zero indexing devices; setting trains therefor; and an escapement to eflect relative movement between the indexing devices and their setting trains: of a rotary, normally ineffective power-drive; means to release the power-drive for operation; manually conditioned means to arrest the power-drive in different angular positions during different operations; and means driven by the power-drive during such diflerential angular rotations, to impart corresponding piuralities of strokes to a setting train.

BURNHAM (2. STICKNEY. 

